16318417853 has 2 divisors, whose sum is σ = 16318417854. Its totient is φ = 16318417852.

The previous prime is 16318417849. The next prime is 16318417901. The reversal of 16318417853 is 35871481361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14727764164 + 1590653689 = 121358^2 + 39883^2 .

It is a cyclic number.

It is not a de Polignac number, because 16318417853 - 2² = 16318417849 is a prime.

It is a super-2 number, since 2×16318417853² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16318417798 and 16318417807.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16318410853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8159208926 + 8159208927.

It is an arithmetic number, because the mean of its divisors is an integer number (8159208927).

Almost surely, 2^16318417853 is an apocalyptic number.

It is an amenable number.

16318417853 is a deficient number, since it is larger than the sum of its proper divisors (1).

16318417853 is an equidigital number, since it uses as much as digits as its factorization.

16318417853 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 483840, while the sum is 47.

The spelling of 16318417853 in words is "sixteen billion, three hundred eighteen million, four hundred seventeen thousand, eight hundred fifty-three".